The Vacuum Contactor mainly consist of vacuum switch tube, base, rotating arm of force, electro-magnetic coil, opening spring, contact spring, spacing part and so forth. When the electro-magnetic coil gets power, attract the moving armature to drive the rotating arm of force do anticlockwise rotation. The rotating arm of force, by way of contact spring, press the moving contact and fixed contact in the vacuum switch tube to touch, then the main circuit will make. After the power to the electro-magnetic coil cut off, the moving armature, by the effect of opening spring, drives the rotating arm of force to do clockwise rotation. After the overtravel H, the rotating arm of force drives the moving contact rod to press the moving contact and fixed contact separate, then the main circuit will cut off.

Because of the spacing component, the rotation angle of the rotating arm of force if fixed and never change.The vacuum switch tube consists of moving and fixed contacts, bellow,conducting rod, ceramic enclosure and so forth.The bellow can make sure the separation between the vacuum in tube and outside air when the contact do axial motion and ensure the moving and fixed contacts in the vacuum condition.

- Vacuum Contactors - Low voltage (380V-1140VAC) | Vacuum Contactors - Medium Voltage (2000V-3600V) | Vacuum Contactors - High Voltage (6000V-12000V) | Withdrawable Vacuum Contactors | Vacuum Circuit Breakers (VCB) | Vacuum Interrupters |